Seal-lock.



PATENTED SEPT. 1, 1908.

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SEAL LOCK. v APPLICATION FILED KAY 16, 1907.

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No. 897,494. PATENTBD SEPT. 1, 90a.

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SEAL LOCK.

APYLIOATIOH FILED MAY 15, 1907.

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No. 897,494. I 4 PATENTED snPTrl, 1908.

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APPLICATION FILED MAY 16, 1907.

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PATENTED SEPT. 1, 1909.

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SEAL LOCK.

APPLICATION run my 15, 1901.

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SEAL-LOCK.

Specification of Letters Patent.

Patented Sept. 1, 1908.

Application filed May 15, 1907. Serial No. 373,868.

To all whom it may concern:

Be it known that l, SIEG'FRIED SonMInL, a subject ofthe Emperor of Austria-Hi1ngary, residing at Briinn, Austriallungary, have invented a new and. useful Seal-Lock; and I do hereby declare the following to be a full, clear, and exact description of the same.

The present invention relates especially to means, combined with a latch or lock, whereby a disk ismarked as a result of an attem t to operate such latch or lock.

In t 1e forms of the invention shown in the accompanying drawings I em loy a paper disk and means which tear sai disk, so that it is readily learned that the latch or lock has been previously opened, or that there has been an unauthorized attempt to open the same.

Referring to the accompanying drawings, Figure 1 is a front view of the invention as applied to the latch for the door of a railway carriage; Fi 2 is a sectional view, on the line 113-1; of Fig. 1; Fig. 3 is a sectional view on the line y-y of Fig. 1; Fig. 4- is a plan View (opened) of a form of my invention as applied to a bolt Fig. 5 is a section on line zz of Fig. 4;Figs. 6-10 illustrate details of the device of Figs. 13. Fig. 6 is a plan view of the latch, and Figs. 7 and 8 are, respectively, vertical and horizontal sections through said latch with the holding ring secured thereto; Figs. 9 and 10 are res ectively, front and slde views of the spind e or pivot.

In the form of the check latch shown in Figs. 1-3 and in Fi s. 6-10, the spindle or ivot a attached to t e side of the carriage or goor is provided with an overhanging annular flange b in which is a notch c. The latch e is provided with a rin (1 having a circular aperture d whereby it %t8 and is rotatable on the ivot or spindle a, and the inside edge of t e a erture is further provided with an annu ar recess or a ledge f (Figs. 6, 7, 8) which receives the flange b when the parts are embedded as shown in Fig. 2. A rin or washer g which is secured to the ring d {by screws d engaging in openings d) overla s and encircles the flange b and holds the atch in position on the pivot or spindle a, on which it is rotatable. A ring or cover h which is provided with an opening to which a glass late 'h is fitted and a spring catch '5, is hinge to the ring d and when the cover his closed said catch passes through an opening 7c in the ring or washer 9 into a cavity m in the ring (the relative arrangement of which shown in Fig. 8) and engages underneath the flange I) of the pivot or spindle it (see Fig. 3) thereby holding the cover It ast.

When the lid h is opened, the marking disk M is laid upon the ring 9. This marking disk contains preferably inscriptions such as the names of the starting and receiving stations, the date of the leaving of the car, etc. The marking disk is gripped between the lid h and the non-rotatable washer g when the lid is closed, and is pressed by the collar 72 against the pivot a, and thereby thelug n provided on the surface of the pivot a penetrates through the marking disk. When the latch e is turned or o ened, the marking disk is carried along and is thereby torn through by the edge 11- so that it is readily ascertained that the latch has been 0 ened or that there has been an unauthorized attempt to open. As soon as the spring catch 1' comes opposite the opening 0 in the flange b the cover 72. can be opened. In order to hold the latch fast in any desired position the ring (1 is formed with a hollow extension 22, in which a sliding piece p is capable of moving u and down to and from the pivot (1. upper edge or that which is directed towards the pivot or s indle a, is deeply concaved at a, While the ower edge is provided witha cavity or recess 1*. In this cavity 1' is fitted an eccentric disk 8 which with its s indles t t pivoted in the front and back wa s thereof, is rotatable therein and is pressed upon by a spring 8 which acts as a brake.

In the s ace a between the pivot or spindle a, (which atter is provided with an annular groove 0, Fig. 10) and the sliding iece steel balls u are inserted, which w on t e disk 8 is rotated for the pur )ose of pushing the sliding iece p upwardly, and locked, make a rigi connection between the latter, the latch e and the spindle a or when released disconnect them as shown in Figs. 1 and 2 in which the disk 8 is shown fixed in such a way that the latch is free to rotate. is turned in such a way that the tooth '0 provided on the spring 8 engages in the groove w, in the eccentric, the sliding, piece 12 is pushed upwards and a firm connection between the spindle a and the latch e is formed. The spindle tis provided with slots :1: so that One 0 the sides p namely the- If the disk 8 l tear t it can only be turned by means of a key specially made for it.

One form of the invention as applied to sliding latches or bolts is shown in Figs. 4 and 5. In this case the indicator which also serves as a seal shows when any attempt has been made to push back the latch or bolt, even before the latter has been touched whereas in the forms reviously described the indicator is damaged only while the hook is being unfastened. In this form a box-like guide or slide for the bolt is employed formed at the front with a plate a which is provided with a radial slot 5 for the handle or pin cl of the bolt 0 The flanged edge a of the plate a is encircled by the ring or washer f 2 which in this way is made rotatable on the plate a This ring is connected by a hinge g with a cover h which carries a spring hook i which when the cover is closed passes through an opening 3' in the ring or washer f 2 and catches underneath the flanged edge a of the plate a by means of which the cover is held fast. The washer or ring and cover can if closed be turned round the plate a as on a pivot until the hook v7 comes opposite an opening a in the flanged edge af in which osition the hook i no longer held fast can e raised or the cover turned up.

In the outer surface of the plate a a circular groove a is formed and teeth or projections k are also formed thereon. If the indicator which is not shown in the drawing be inserted after the bolt 0 has been pushed forward, over the top of. handle or pin d which occupies the center of the plate a and the hinged cover either in the position shown in Fig. 4, or in any other position in which the opening a is covered, be shut, the rim k of the cover will press the indicator into the groove a so that the teeth k pass through the indicator and at the same time the edge of the disk is firmly held in osition between.

the ring f and cover h. iece of glass I inserted in the cover makes tlie disk visible. In order to draw back the bolt it must first of all be made visible. But this can only be done by turning the cover h together with the ring f which is closed together with it. But as soon as this turning commences in which movement the firmly held indicator must articipate, the stationary teeth out or fie indicator which can be seen through cover fast to the plate a the glass. When the cover has been turned so far that its hook reaches into the opening in the flange the indicator being already pierced the lock can be opened and the pin or handle be pushed along the slot in the stationary plate the bolt being thus drawn back. In order to prevent the cover h and ring f being turned by an unauthorized person a lock can be fitted to these arts the bolt of which actuated by a sma 1 key holds the What I claim and desire to secure by Let ters Patent, is:

1. In a look, a locking member, a fixed lock part with which said member movably engages and provided with a flange therearound and cut away at one portion, a cover for said lock part having a hook for rotatably engaging with the flange of said fixed lock part, and for entering and leaving the cut away portion of said flange and means for making a visible indication upon a disk when the cover is moved.

2. In a look, -a locking member, a fixed lock part to which the looking member is pivotally connected and provided with a flange therearound and cut away at one portion, a cover hinged to said locking member having a hook for rotatably engaging with the flange of said fixed lock part, and for entering and leaving the cut away portion of said flange, and means for making a visible indication upon a disk when the cover is moved.

3. In a lock, a locking member a fixed lock part with which the looking member has a pivotal engagement and provided with a flange therearound cut away at one portion, a cutting device on said fixed locking part, a cover hinged to said locking member for ipping a disk between the cover and the loc ing member and for forcing the same against the cutting device, and a hook u on the cover for rotatably engaging the a oresaid flange and for entering and leaving the cut away portion thereof.

In testimony whereof, I have signed my name to this specification in the presence of 100 two subscribing witnesses.

SIEGFRIED SCHMIDL.

Witnesses:

MORESLIS EMMANUEL, ROBERT MENDL. 

